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(No Model.) 2 Sheets-Sheet 1. A. H. TYLER 8v J. S. E. DE VESIAN. MACHINE nP011 DRILLING, BORING, 0B. SHAPING.

Patented May 12,1891.

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(No Model.) f 2 Sheets-Sheet 2. A. H. TYLER 8v J. S. E. DE VBSIAN. MACHINE FOR DRILLING, BORING, OR SHAPING.

Patent/@May 12., 1891.

UNITED STATES EEIOE.

PATENT yALFRED IIUeII TYLER AND JOHN 4STUART ELLIS DE vEsIAN, OE LON DON, ENGLAND.

MACHINE FOR DRILLING, BORING, OR SHAPING.

SPECIFICATION forming part 0f Letters Patent No. 452,169, dated May 12, 1891. Application filed May 19- 1890. rSerial No. 352.381. (No model.) Patented in England March 11, 1890, No. 3,850.

To LZZ wiz/0m. tm/tty concern:

Be itknown that we, ALFRED HUGH TYLER and JOHN STUART ELLIS DE VEsIAN, engineers,subjects of the Queen of Great Britain and Ireland, and both of the iirm of Tyler du Ellis, of 5 Crown Court, in the city of London, England, have invented certain Improvements in Machines for Drilling, Boring, or Shaping, of which the following is a specification.

Ourinvention has for its objectto providea machine by means of which holes of any shape or size can be bored or drilled or by which the eXteriors of nuts can be shaped or trued or other analogous operations performed.

According to our invention we provide a tool-carrying spindle capable of being moved longitudinally in its carrier or sleeve, which sleeve, by being mounted on a universal joint or the like and in a slide, is capable of a vibratory movement. At a point either above or below the center of oscillation the said sleeve is provided with a roller, (or equivalent bearing surface,) and this roller is, by means of a system of springs to be hereinafter described, made to traverse the surface of a templet shaped according to the hole to be drilled or the surface to be Inachined and iixed rigidly tothe carriageor head-stock which carries the whole of the above-described apparatus. This carriage or head-stock, with the drill-spindle and templet, is capable of being moved vertically in slides while drilling, the slides being attached to the main framing of the machine, so that the tool is fed to-or from its work, or the work may be fed relatively to the tool.

Figure l is a vertical section through the center of the drill-spindle, (on line 7 S of Fig. 2), showing so much of the apparatus as is necessary to illustrate our invention. Fig. 2 is a sectional plan, the section being taken on the line 1 2, Fig. 1. Fig. 3 is a section taken on the line 3 4t, Fig. l. Figs. Il and 5 show the loose slide connection between the upper andlower portions of the cutter-holder. Fig. 6 isa section on the line 5 6, Fig. 1. Fig. 7 shows in plan a roller and templet suitable for forming a lIeXagon, as there diagrammatically indicated. Fig. 8 shows arrangement of tool for 'finishing outsides -of objects. Fig. 9 shows means for imparting a reciprocating movement to the head which carries the cutter-holder. Fig: l0 shows arm attached to spindle in place of a roller for the templet to act upon for forming keyways. Fig. l1 shows an arrangement for using Aan outside templet. Fig. l2shows the machine designed with the spherical bearing above and the templet below. Fig. 13 shows an arrangement by means of which the spherical bearing is entirely7 dispensed with, but the same result obtained by using two templets, both of similar shape, but one smaller than the other. Fig. 14c is a sectional detail view showing part of the driving mechanism.

A is the main framing of the machine, having guides upon which the tool-carryin g head B can be moved to and from the work by the so that, although the spur-wheel (Z2 can slide on the shaft D, the one cannot rotate without the other. This spur-wheel (Z2 is caused to move vertically up and down the shaft D with the head-stock B, as shown more particularly in Fig. 14., which is a vertical section taken through the axis ot' the shaft D, by means of the sleeve and collar y passing through the boss e, which is cast on the head-stock B, so that in whatever position the head-stock B is relatively to the driving-shaft C the drill receives its rotary motion from the shaft D by means of the sliding wheel d?, which engages with the spur-wheel e, secured to or formed in one with the sleeve E. `This sleeve rotates in the bearing in the upperprojecting part B2 of the head-stock B.

The means by which the sleeve F, carrying the drill-spindle f, is oscillated, while at the same time it is being driven round, is clearly shown by Fig. 3, which is a section on the line 3 4, Fig. l. There it will be seen that the sleeve E on the driving-wheel e has a hole IOO through it with parallel sides. ln this hole slides the sleeve F, which at this point also has parallel sides exactly {itt-ing the hole in the. sleeve E in one direction, while in the other direction there is room for the sleeve to oscillate. The result of this arrangement is that if the sleeve E is rotated the drill-sleeve F 1n ust revolve with it, on account of the parallel sides, while if any other force be exerted on the drill-sleeve (such as that due to the templet) the clearance e2 permits of its free oscillation, and the combination of these two motions enables the drill to move in any desired direction for forming any-shaped hole. The drill-spindle is driven from the sleeve F by means of a feather 0, Fig. 2, on the spindle fitting freely a slot in the sleeve, so that the drill-spindle can be moved up and down in the sleeve F and yet must revolve with it. The lower part of this sleeve F is furnished with a spherical bearingf7 fitting into a similar seating in the lower branch IF of the headstock B, and it is on this spherical seat that the drill revolves and oscillates.

The guiding of the drill to cut the required shape is performed as follows: A templet G (the shape of which varies according to the shape of the piece of material to be machined) is inserted in the recess provided foritin the upper branch B2 of the head-stock B, and the roller j, Fig. 7, which runs freely on the end of the sleeve F to guide the spindlej" andthe tool, is kept against the templet bythe collar fp, in the manner shown, and is caused to run over the surface of this templet G, with which it is held in contact by the arrangement of springs g and saddle 7.', as shown at Fig. (i, which is a section on the liuc 5 G, Fig. l. rlhe spindle-sleeve F is embraced by the saddlepiece 7.1, provided with the two bolts, as shown. These bolts cach pass through alug g2, cast on the lower side of the driving-wheel e. Over each of these bolts lis placed a spiral spring g, kept in their place and in a state of compression by the double nuts, as shown. It will be seen that as these springs are constantly tending to extend they press equally on the lug g`-` at one end and on the under side of the nuts at the other end. As the lugs form part of the spur-wheel e, Fig. (5, (which can only revolve,) the pressure of the springs on the bolts which are attached t0 the saddle 7c will constantly tend to press the said saddle, together with the sleeve F, as far over as possible to one side, and thus it is that the roller f3, attached to the sleeve F, is always kept in contact with the templet G. The screwi, which passes through a lug i2, cast on the spur-wheel e, is for the purpose of pressing the roller f3 or the like out of contact with the templet G when desired.

The means by which the drill-spindle is moved longitudinally in its sleeve F is shown in Figs. It and 5. The screiwf has a small dovetailed piece forged onto the end of it, which iits loosely into a dovetailed slot f4, formed on the end of the spindle f.

The

swinging motion is so small here that this loosencss is found to be suilicient to preventthe joint binding when the drill is at work,

while by revolving the hand-wheel shown above, and which runs as a nut on the screw f", the spindle is either raised or depressed, and by this means the size of the hole drilled is determined.

The cutting-tool may be so situated relatively to the spindle that it will act upon cxternal surfaces-such, for example, as upon nuts, bolts, heads, and thelikc. This is illuslustrated in Fig. 8.

Fig. 9 shows ordinary gear for reciprocating the head while slow rotary movement is given to the tool.

Fig. lO is an illustration of the sleeve F, provided with a bearing-surface or tracer f5, having a smaller end to enter the recess of the templct.

rlhe mechanism described maybe varied in its details. For instance, the rollerf3 may move outside the tcmplet G, as shown in Fig. ll. The templet G may be rotated at intervals by hand, so as to vary the shape of the hole or surface, and similarly, if the spindlej" be moved in its sleeve during the operation, the hole or surface will be coned. The vibratory or conic motion of the tool-carrier may be obtained as described or in any othersuitable way-as for instance, by moving it about a center above the templet, as shown in Fig. l2; or the spherical seatinginay be entirely omitted and the spindle guided by two templets G and G', as shown in Fig. 13. llere the spindle sleeve F is provided with two rollers f ai'1d ]"",each running on separate tcmplets G and G. 'lhe two templets are similar in shape but one is smaller than the other.

The tool is arranged as shownin Fig. S, so that its cutting-edge is on the axial line of the drill-spindle to produce sharp corners in the work executed.

\\e clainias our invention-- l. In a machine forboring, drilling, or shaping, the combination of a frame and a headstock with atool-carrying spindle carried by the head-stock, means for rotating and oscillating the spindle, a templet to determine the oscillating movement, and means for adjusting thc head-stock withthe spindle while the latter is rotating.

2. In a machine for boring, drilling, or shaping, the combination of a tool-carrying spindle with a carrier therefor, the said spindle being capable of longitudinal adjustment in the carrier, a spherical bearing for the carrier, whereby the carrier and tool-carrying spindle may be oscillated, means for rotating the spindle, and a gniding-templct for the oscillating carrier.

3. In a machine for boring, drilling, or shaping, the combination of a frame and aheadstock adjustable on the frame with a tool-carryin g spindle carried by the head-stock in a spherical bearing, so as to be free to oscillate IOO IIO

therein, means for rotating the spindle, and a templet to determinethe oscillating movement Of the spindle.

4i. In a machine for boring, drilling, o1' shaping', the combination of a head-stock 'having a spherical bearing, a spindle-Camiel' mounted in said bearing, and means for rotating the carrier with a tool-carrying spindle in the carrier, so as to rotate and oseillate therewith, but capable of longitudinal adjustment therein, a templet to determine the oscillating,` movement, and springs to keep partof the carrier up to the templet.

5. In a machine foiboring, clrillin 9;, o11 shaping, the combination of a tool-carrying spindle oscillating in a spherical bearing with mechanism for rotating the spindle, a tempiet to determine the oscillating1 movement, and a cutting-tool carried by the spindle and having' its cutting-edge in axial line with the spindle.

Inv testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

ALFRED HUGH TYLER. JOHN STUART ELLIS DE VESIAN.

Witnesses:

WILLIAM F. UPTON, 47 Lincolns Inn Fields, London, W. C.

R. GALLoN, 9 Biocm'n Lema, London, E. C. 

